方案
By Technology
NCV890131 是一款固定频率、单片式、降压开关稳压器,用于必须在最高 32 V 的输入电压下运行的汽车、电池联接应用。该稳压器适用于具有低噪声和小外形要求的系统,通常汽车驾驶员信息系统有此要求。NCV890131 能够将典型的 4.5 V 到 18 V 汽车输入电压以高于敏感的 AM 频带的恒定开关频率转换为低至 3.3 V,无需成本高昂的滤波器和 EMI 应对措施。提供两个引脚与时钟或另一个 NCV890131 进行同步开关。NCV890131 还提供汽车电源系统中应具有的若干保护功能,如电流限值、短路保护和高温关断。此外,即使使用较小的电感器值和全陶瓷输出滤波电容器,高开关频率也会产生较低的输出电压纹波,从而成为节省空间的开关稳压器方案。
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CAD Models
Compliance
Package Type
Case Outline
MSL Type
MSL Temp (°C)
Container Type
Container Qty.
ON Target
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Reference Price
NCV890131MWTXG
Pb
A
H
P
DFN-10
1
260
REEL
3000
N
Step-Down
Current Mode
4.5
45
Adjustable
1.2
-
2200
Price N/A
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可靠性数据
Die Related Summary Data
Device: NCV890131MWTXG
Equivalent to wafer fab process: BP STD LINEAR
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
BP STD LINEAR
10
12120914040
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Re-calculate Data
Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)